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                    option选项
            
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                    video,audio音视频
            
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    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href="../.." >鼠标事件</a>
    </h1>
</div>




                    <div class="page-wrapper" tabindex="-1" role="main">
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                                <section class="normal markdown-section">
                                
                                <h1 id="&#x9F20;&#x6807;&#x4E8B;&#x4EF6;">&#x9F20;&#x6807;&#x4E8B;&#x4EF6;</h1>
<h2 id="&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;">&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;</h2>
<p>&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x6307;&#x4E0E;&#x9F20;&#x6807;&#x76F8;&#x5173;&#x7684;&#x4E8B;&#x4EF6;&#xFF0C;&#x7EE7;&#x627F;&#x4E86;<code>MouseEvent</code>&#x63A5;&#x53E3;&#x3002;&#x5177;&#x4F53;&#x7684;&#x4E8B;&#x4EF6;&#x4E3B;&#x8981;&#x6709;&#x4EE5;&#x4E0B;&#x4E00;&#x4E9B;&#x3002;</p>
<ul>
<li><code>click</code>&#xFF1A;&#x6309;&#x4E0B;&#x9F20;&#x6807;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x6309;&#x4E0B;&#x4E3B;&#x6309;&#x94AE;&#xFF09;&#x65F6;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>dblclick</code>&#xFF1A;&#x5728;&#x540C;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x4E0A;&#x53CC;&#x51FB;&#x9F20;&#x6807;&#x65F6;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>mousedown</code>&#xFF1A;&#x6309;&#x4E0B;&#x9F20;&#x6807;&#x952E;&#x65F6;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>mouseup</code>&#xFF1A;&#x91CA;&#x653E;&#x6309;&#x4E0B;&#x7684;&#x9F20;&#x6807;&#x952E;&#x65F6;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>mousemove</code>&#xFF1A;&#x5F53;&#x9F20;&#x6807;&#x5728;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x79FB;&#x52A8;&#x65F6;&#x89E6;&#x53D1;&#x3002;&#x5F53;&#x9F20;&#x6807;&#x6301;&#x7EED;&#x79FB;&#x52A8;&#x65F6;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x4F1A;&#x8FDE;&#x7EED;&#x89E6;&#x53D1;&#x3002;&#x4E3A;&#x4E86;&#x907F;&#x514D;&#x6027;&#x80FD;&#x95EE;&#x9898;&#xFF0C;&#x5EFA;&#x8BAE;&#x5BF9;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x505A;&#x4E00;&#x4E9B;&#x9650;&#x5B9A;&#xFF0C;&#x6BD4;&#x5982;&#x9650;&#x5B9A;&#x4E00;&#x6BB5;&#x65F6;&#x95F4;&#x5185;&#x53EA;&#x80FD;&#x8FD0;&#x884C;&#x4E00;&#x6B21;&#x3002;</li>
<li><code>mouseenter</code>&#xFF1A;&#x9F20;&#x6807;&#x8FDB;&#x5165;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x8FDB;&#x5165;&#x5B50;&#x8282;&#x70B9;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF08;&#x8BE6;&#x89C1;&#x540E;&#x6587;&#xFF09;&#x3002;</li>
<li><code>mouseover</code>&#xFF1A;&#x9F20;&#x6807;&#x8FDB;&#x5165;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x8FDB;&#x5165;&#x5B50;&#x8282;&#x70B9;&#x4F1A;&#x518D;&#x4E00;&#x6B21;&#x89E6;&#x53D1;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF08;&#x8BE6;&#x89C1;&#x540E;&#x6587;&#xFF09;&#x3002;</li>
<li><code>mouseout</code>&#xFF1A;&#x9F20;&#x6807;&#x79BB;&#x5F00;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x79BB;&#x5F00;&#x7236;&#x8282;&#x70B9;&#x4E5F;&#x4F1A;&#x89E6;&#x53D1;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF08;&#x8BE6;&#x89C1;&#x540E;&#x6587;&#xFF09;&#x3002;</li>
<li><code>mouseleave</code>&#xFF1A;&#x9F20;&#x6807;&#x79BB;&#x5F00;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x79BB;&#x5F00;&#x7236;&#x8282;&#x70B9;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF08;&#x8BE6;&#x89C1;&#x540E;&#x6587;&#xFF09;&#x3002;</li>
<li><code>contextmenu</code>&#xFF1A;&#x6309;&#x4E0B;&#x9F20;&#x6807;&#x53F3;&#x952E;&#x65F6;&#xFF08;&#x4E0A;&#x4E0B;&#x6587;&#x83DC;&#x5355;&#x51FA;&#x73B0;&#x524D;&#xFF09;&#x89E6;&#x53D1;&#xFF0C;&#x6216;&#x8005;&#x6309;&#x4E0B;&#x201C;&#x4E0A;&#x4E0B;&#x6587;&#x83DC;&#x5355;&#x952E;&#x201D;&#x65F6;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>wheel</code>&#xFF1A;&#x6EDA;&#x52A8;&#x9F20;&#x6807;&#x7684;&#x6EDA;&#x8F6E;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7EE7;&#x627F;&#x7684;&#x662F;<code>WheelEvent</code>&#x63A5;&#x53E3;&#x3002;</li>
</ul>
<p><code>click</code>&#x4E8B;&#x4EF6;&#x6307;&#x7684;&#x662F;&#xFF0C;&#x7528;&#x6237;&#x5728;&#x540C;&#x4E00;&#x4E2A;&#x4F4D;&#x7F6E;&#x5148;&#x5B8C;&#x6210;<code>mousedown</code>&#x52A8;&#x4F5C;&#xFF0C;&#x518D;&#x5B8C;&#x6210;<code>mouseup</code>&#x52A8;&#x4F5C;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x89E6;&#x53D1;&#x987A;&#x5E8F;&#x662F;&#xFF0C;<code>mousedown</code>&#x9996;&#x5148;&#x89E6;&#x53D1;&#xFF0C;<code>mouseup</code>&#x63A5;&#x7740;&#x89E6;&#x53D1;&#xFF0C;<code>click</code>&#x6700;&#x540E;&#x89E6;&#x53D1;&#x3002;</p>
<p><code>dblclick</code>&#x4E8B;&#x4EF6;&#x5219;&#x4F1A;&#x5728;<code>mousedown</code>&#x3001;<code>mouseup</code>&#x3001;<code>click</code>&#x4E4B;&#x540E;&#x89E6;&#x53D1;&#x3002;</p>
<p><code>mouseover</code>&#x4E8B;&#x4EF6;&#x548C;<code>mouseenter</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x90FD;&#x662F;&#x9F20;&#x6807;&#x8FDB;&#x5165;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#x3002;&#x4E24;&#x8005;&#x7684;&#x533A;&#x522B;&#x662F;&#xFF0C;<code>mouseenter</code>&#x4E8B;&#x4EF6;&#x53EA;&#x89E6;&#x53D1;&#x4E00;&#x6B21;&#xFF0C;&#x800C;&#x53EA;&#x8981;&#x9F20;&#x6807;&#x5728;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x79FB;&#x52A8;&#xFF0C;<code>mouseover</code>&#x4E8B;&#x4EF6;&#x4F1A;&#x5728;&#x5B50;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#x591A;&#x6B21;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
 &lt;ul&gt;
   &lt;li&gt;item 1&lt;/li&gt;
   &lt;li&gt;item 2&lt;/li&gt;
  &lt;li&gt;item 3&lt;/li&gt;
 &lt;/ul&gt;
*/</span>

<span class="hljs-keyword">var</span> ul = <span class="hljs-built_in">document</span>.querySelector(<span class="hljs-string">&apos;ul&apos;</span>);

<span class="hljs-comment">// &#x8FDB;&#x5165; ul &#x8282;&#x70B9;&#x4EE5;&#x540E;&#xFF0C;mouseenter &#x4E8B;&#x4EF6;&#x53EA;&#x4F1A;&#x89E6;&#x53D1;&#x4E00;&#x6B21;</span>
<span class="hljs-comment">// &#x4EE5;&#x540E;&#x53EA;&#x8981;&#x9F20;&#x6807;&#x5728;&#x8282;&#x70B9;&#x5185;&#x79FB;&#x52A8;&#xFF0C;&#x90FD;&#x4E0D;&#x4F1A;&#x518D;&#x89E6;&#x53D1;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;</span>
<span class="hljs-comment">// event.target &#x662F; ul &#x8282;&#x70B9;</span>
ul.addEventListener(<span class="hljs-string">&apos;mouseenter&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  event.target.style.color = <span class="hljs-string">&apos;purple&apos;</span>;
  setTimeout(<span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
    event.target.style.color = <span class="hljs-string">&apos;&apos;</span>;
  }, <span class="hljs-number">500</span>);
}, <span class="hljs-literal">false</span>);

<span class="hljs-comment">// &#x8FDB;&#x5165; ul &#x8282;&#x70B9;&#x4EE5;&#x540E;&#xFF0C;&#x53EA;&#x8981;&#x5728;&#x5B50;&#x8282;&#x70B9;&#x4E0A;&#x79FB;&#x52A8;&#xFF0C;mouseover &#x4E8B;&#x4EF6;&#x4F1A;&#x89E6;&#x53D1;&#x591A;&#x6B21;</span>
<span class="hljs-comment">// event.target &#x662F; li &#x8282;&#x70B9;</span>
ul.addEventListener(<span class="hljs-string">&apos;mouseover&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  event.target.style.color = <span class="hljs-string">&apos;orange&apos;</span>;
  setTimeout(<span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
    event.target.style.color = <span class="hljs-string">&apos;&apos;</span>;
  }, <span class="hljs-number">500</span>);
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x5728;&#x7236;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x8FDB;&#x5165;&#x5B50;&#x8282;&#x70B9;&#xFF0C;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;<code>mouseenter</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x4F46;&#x662F;&#x4F1A;&#x89E6;&#x53D1;<code>mouseover</code>&#x4E8B;&#x4EF6;&#x3002;</p>
<p><code>mouseout</code>&#x4E8B;&#x4EF6;&#x548C;<code>mouseleave</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x90FD;&#x662F;&#x9F20;&#x6807;&#x79BB;&#x5F00;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#x3002;&#x4E24;&#x8005;&#x7684;&#x533A;&#x522B;&#x662F;&#xFF0C;&#x5728;&#x7236;&#x5143;&#x7D20;&#x5185;&#x90E8;&#x79BB;&#x5F00;&#x4E00;&#x4E2A;&#x5B50;&#x5143;&#x7D20;&#x65F6;&#xFF0C;<code>mouseleave</code>&#x4E8B;&#x4EF6;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#xFF0C;&#x800C;<code>mouseout</code>&#x4E8B;&#x4EF6;&#x4F1A;&#x89E6;&#x53D1;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
 &lt;ul&gt;
   &lt;li&gt;item 1&lt;/li&gt;
   &lt;li&gt;item 2&lt;/li&gt;
  &lt;li&gt;item 3&lt;/li&gt;
 &lt;/ul&gt;
*/</span>

<span class="hljs-keyword">var</span> ul = <span class="hljs-built_in">document</span>.querySelector(<span class="hljs-string">&apos;ul&apos;</span>);

<span class="hljs-comment">// &#x5148;&#x8FDB;&#x5165; ul &#x8282;&#x70B9;&#xFF0C;&#x7136;&#x540E;&#x5728;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x79FB;&#x52A8;&#xFF0C;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1; mouseleave &#x4E8B;&#x4EF6;</span>
<span class="hljs-comment">// &#x53EA;&#x6709;&#x79BB;&#x5F00; ul &#x8282;&#x70B9;&#x65F6;&#xFF0C;&#x89E6;&#x53D1;&#x4E00;&#x6B21; mouseleave</span>
<span class="hljs-comment">// event.target &#x662F; ul &#x8282;&#x70B9;</span>
ul.addEventListener(<span class="hljs-string">&apos;mouseleave&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  event.target.style.color = <span class="hljs-string">&apos;purple&apos;</span>;
  setTimeout(<span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
    event.target.style.color = <span class="hljs-string">&apos;&apos;</span>;
  }, <span class="hljs-number">500</span>);
}, <span class="hljs-literal">false</span>);

<span class="hljs-comment">// &#x5148;&#x8FDB;&#x5165; ul &#x8282;&#x70B9;&#xFF0C;&#x7136;&#x540E;&#x5728;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x79FB;&#x52A8;&#xFF0C;mouseout &#x4E8B;&#x4EF6;&#x4F1A;&#x89E6;&#x53D1;&#x591A;&#x6B21;</span>
<span class="hljs-comment">// event.target &#x662F; li &#x8282;&#x70B9;</span>
ul.addEventListener(<span class="hljs-string">&apos;mouseout&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  event.target.style.color = <span class="hljs-string">&apos;orange&apos;</span>;
  setTimeout(<span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
    event.target.style.color = <span class="hljs-string">&apos;&apos;</span>;
  }, <span class="hljs-number">500</span>);
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x5728;&#x7236;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x79BB;&#x5F00;&#x5B50;&#x8282;&#x70B9;&#xFF0C;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;<code>mouseleave</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x4F46;&#x662F;&#x4F1A;&#x89E6;&#x53D1;<code>mouseout</code>&#x4E8B;&#x4EF6;&#x3002;</p>
<h2 id="mouseevent-&#x63A5;&#x53E3;&#x6982;&#x8FF0;">MouseEvent &#x63A5;&#x53E3;&#x6982;&#x8FF0;</h2>
<p><code>MouseEvent</code>&#x63A5;&#x53E3;&#x4EE3;&#x8868;&#x4E86;&#x9F20;&#x6807;&#x76F8;&#x5173;&#x7684;&#x4E8B;&#x4EF6;&#xFF0C;&#x5355;&#x51FB;&#xFF08;click&#xFF09;&#x3001;&#x53CC;&#x51FB;&#xFF08;dblclick&#xFF09;&#x3001;&#x677E;&#x5F00;&#x9F20;&#x6807;&#x952E;&#xFF08;mouseup&#xFF09;&#x3001;&#x6309;&#x4E0B;&#x9F20;&#x6807;&#x952E;&#xFF08;mousedown&#xFF09;&#x7B49;&#x52A8;&#x4F5C;&#xFF0C;&#x6240;&#x4EA7;&#x751F;&#x7684;&#x4E8B;&#x4EF6;&#x5BF9;&#x8C61;&#x90FD;&#x662F;<code>MouseEvent</code>&#x5B9E;&#x4F8B;&#x3002;&#x6B64;&#x5916;&#xFF0C;&#x6EDA;&#x8F6E;&#x4E8B;&#x4EF6;&#x548C;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x4E5F;&#x662F;<code>MouseEvent</code>&#x5B9E;&#x4F8B;&#x3002;</p>
<p><code>MouseEvent</code>&#x63A5;&#x53E3;&#x7EE7;&#x627F;&#x4E86;<code>Event</code>&#x63A5;&#x53E3;&#xFF0C;&#x6240;&#x4EE5;&#x62E5;&#x6709;<code>Event</code>&#x7684;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x548C;&#x65B9;&#x6CD5;&#x3002;&#x5B83;&#x8FD8;&#x6709;&#x81EA;&#x5DF1;&#x7684;&#x5C5E;&#x6027;&#x548C;&#x65B9;&#x6CD5;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;<code>MouseEvent</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x4E8E;&#x65B0;&#x5EFA;&#x4E00;&#x4E2A;<code>MouseEvent</code>&#x5B9E;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> event = <span class="hljs-keyword">new</span> MouseEvent(type, options);
</code></pre>
<p><code>MouseEvent</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x63A5;&#x53D7;&#x4E24;&#x4E2A;&#x53C2;&#x6570;&#x3002;&#x7B2C;&#x4E00;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x540D;&#x79F0;&#xFF1B;&#x7B2C;&#x4E8C;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x4E00;&#x4E2A;&#x4E8B;&#x4EF6;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#xFF0C;&#x8BE5;&#x53C2;&#x6570;&#x53EF;&#x9009;&#x3002;&#x9664;&#x4E86;<code>Event</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#xFF0C;&#x8BE5;&#x5BF9;&#x8C61;&#x53EF;&#x4EE5;&#x914D;&#x7F6E;&#x4EE5;&#x4E0B;&#x5C5E;&#x6027;&#xFF0C;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EF;&#x9009;&#x7684;&#x3002;</p>
<ul>
<li><code>screenX</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x9F20;&#x6807;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x7684;&#x6C34;&#x5E73;&#x4F4D;&#x7F6E;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;0&#xFF0C;&#x8BBE;&#x7F6E;&#x8BE5;&#x5C5E;&#x6027;&#x4E0D;&#x4F1A;&#x79FB;&#x52A8;&#x9F20;&#x6807;&#x3002;</li>
<li><code>screenY</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x9F20;&#x6807;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x7684;&#x5782;&#x76F4;&#x4F4D;&#x7F6E;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;&#x5176;&#x4ED6;&#x4E0E;<code>screenX</code>&#x76F8;&#x540C;&#x3002;</li>
<li><code>clientX</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x9F20;&#x6807;&#x76F8;&#x5BF9;&#x4E8E;&#x7A0B;&#x5E8F;&#x7A97;&#x53E3;&#x7684;&#x6C34;&#x5E73;&#x4F4D;&#x7F6E;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;0&#xFF0C;&#x8BBE;&#x7F6E;&#x8BE5;&#x5C5E;&#x6027;&#x4E0D;&#x4F1A;&#x79FB;&#x52A8;&#x9F20;&#x6807;&#x3002;</li>
<li><code>clientY</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x9F20;&#x6807;&#x76F8;&#x5BF9;&#x4E8E;&#x7A0B;&#x5E8F;&#x7A97;&#x53E3;&#x7684;&#x5782;&#x76F4;&#x4F4D;&#x7F6E;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;&#x5176;&#x4ED6;&#x4E0E;<code>clientX</code>&#x76F8;&#x540C;&#x3002;</li>
<li><code>ctrlKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x4E86; Ctrl &#x952E;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>shiftKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x4E86; Shift &#x952E;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>altKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B; Alt &#x952E;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>metaKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B; Meta &#x952E;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>button</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x4E86;&#x54EA;&#x4E00;&#x4E2A;&#x9F20;&#x6807;&#x6309;&#x952E;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>0</code>&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x4E3B;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x9F20;&#x6807;&#x7684;&#x5DE6;&#x952E;&#xFF09;&#x6216;&#x8005;&#x5F53;&#x524D;&#x4E8B;&#x4EF6;&#x6CA1;&#x6709;&#x5B9A;&#x4E49;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#xFF1B;<code>1</code>&#x8868;&#x793A;&#x6309;&#x4E0B;&#x8F85;&#x52A9;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x9F20;&#x6807;&#x7684;&#x4E2D;&#x95F4;&#x952E;&#xFF09;&#xFF0C;<code>2</code>&#x8868;&#x793A;&#x6309;&#x4E0B;&#x6B21;&#x8981;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x9F20;&#x6807;&#x7684;&#x53F3;&#x952E;&#xFF09;&#x3002;</li>
<li><code>buttons</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x4E86;&#x9F20;&#x6807;&#x7684;&#x54EA;&#x4E9B;&#x952E;&#xFF0C;&#x662F;&#x4E00;&#x4E2A;&#x4E09;&#x4E2A;&#x6BD4;&#x7279;&#x4F4D;&#x7684;&#x4E8C;&#x8FDB;&#x5236;&#x503C;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;<code>0</code>&#xFF08;&#x6CA1;&#x6709;&#x6309;&#x4E0B;&#x4EFB;&#x4F55;&#x952E;&#xFF09;&#x3002;<code>1</code>&#xFF08;&#x4E8C;&#x8FDB;&#x5236;<code>001</code>&#xFF09;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x4E3B;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x5DE6;&#x952E;&#xFF09;&#xFF0C;<code>2</code>&#xFF08;&#x4E8C;&#x8FDB;&#x5236;<code>010</code>&#xFF09;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x6B21;&#x8981;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x53F3;&#x952E;&#xFF09;&#xFF0C;<code>4</code>&#xFF08;&#x4E8C;&#x8FDB;&#x5236;<code>100</code>&#xFF09;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x8F85;&#x52A9;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x4E2D;&#x95F4;&#x952E;&#xFF09;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x5982;&#x679C;&#x8FD4;&#x56DE;<code>3</code>&#xFF08;&#x4E8C;&#x8FDB;&#x5236;<code>011</code>&#xFF09;&#x5C31;&#x8868;&#x793A;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x4E86;&#x5DE6;&#x952E;&#x548C;&#x53F3;&#x952E;&#x3002;</li>
<li><code>relatedTarget</code>&#xFF1A;&#x8282;&#x70B9;&#x5BF9;&#x8C61;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x7684;&#x76F8;&#x5173;&#x8282;&#x70B9;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;<code>null</code>&#x3002;<code>mouseenter</code>&#x548C;<code>mouseover</code>&#x4E8B;&#x4EF6;&#x65F6;&#xFF0C;&#x8868;&#x793A;&#x9F20;&#x6807;&#x521A;&#x521A;&#x79BB;&#x5F00;&#x7684;&#x90A3;&#x4E2A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#xFF1B;<code>mouseout</code>&#x548C;<code>mouseleave</code>&#x4E8B;&#x4EF6;&#x65F6;&#xFF0C;&#x8868;&#x793A;&#x9F20;&#x6807;&#x6B63;&#x5728;&#x8FDB;&#x5165;&#x7684;&#x90A3;&#x4E2A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">simulateClick</span>(<span class="hljs-params"></span>) </span>{
  <span class="hljs-keyword">var</span> event = <span class="hljs-keyword">new</span> MouseEvent(<span class="hljs-string">&apos;click&apos;</span>, {
    <span class="hljs-string">&apos;bubbles&apos;</span>: <span class="hljs-literal">true</span>,
    <span class="hljs-string">&apos;cancelable&apos;</span>: <span class="hljs-literal">true</span>
  });
  <span class="hljs-keyword">var</span> cb = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;checkbox&apos;</span>);
  cb.dispatchEvent(event);
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x751F;&#x6210;&#x4E00;&#x4E2A;&#x9F20;&#x6807;&#x70B9;&#x51FB;&#x4E8B;&#x4EF6;&#xFF0C;&#x5E76;&#x89E6;&#x53D1;&#x8BE5;&#x4E8B;&#x4EF6;&#x3002;</p>
<h2 id="mouseevent-&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;">MouseEvent &#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;</h2>
<h3 id="mouseeventaltkey&#xFF0C;mouseeventctrlkey&#xFF0C;mouseeventmetakey&#xFF0C;mouseeventshiftkey">MouseEvent.altKey&#xFF0C;MouseEvent.ctrlKey&#xFF0C;MouseEvent.metaKey&#xFF0C;MouseEvent.shiftKey</h3>
<p><code>MouseEvent.altKey</code>&#x3001;<code>MouseEvent.ctrlKey</code>&#x3001;<code>MouseEvent.metaKey</code>&#x3001;<code>MouseEvent.shiftKey</code>&#x8FD9;&#x56DB;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x53D1;&#x751F;&#x65F6;&#xFF0C;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x5BF9;&#x5E94;&#x7684;&#x952E;&#x3002;&#x5B83;&#x4EEC;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<ul>
<li><code>altKey</code>&#x5C5E;&#x6027;&#xFF1A;Alt &#x952E;</li>
<li><code>ctrlKey</code>&#x5C5E;&#x6027;&#xFF1A;Ctrl &#x952E;</li>
<li><code>metaKey</code>&#x5C5E;&#x6027;&#xFF1A;Meta &#x952E;&#xFF08;Mac &#x952E;&#x76D8;&#x662F;&#x4E00;&#x4E2A;&#x56DB;&#x74E3;&#x7684;&#x5C0F;&#x82B1;&#xFF0C;Windows &#x952E;&#x76D8;&#x662F; Windows &#x952E;&#xFF09;</li>
<li><code>shiftKey</code>&#x5C5E;&#x6027;&#xFF1A;Shift &#x952E;</li>
</ul>
<pre><code class="lang-javascript"><span class="hljs-comment">// HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;</span>
<span class="hljs-comment">// &lt;body onclick=&quot;showKey(event)&quot;&gt;</span>
<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">showKey</span>(<span class="hljs-params">e</span>) </span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;ALT key pressed: &apos;</span> + e.altKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;CTRL key pressed: &apos;</span> + e.ctrlKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;META key pressed: &apos;</span> + e.metaKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;SHIFT key pressed: &apos;</span> + e.shiftKey);
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x70B9;&#x51FB;&#x7F51;&#x9875;&#x4F1A;&#x8F93;&#x51FA;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x5BF9;&#x5E94;&#x7684;&#x952E;&#x3002;</p>
<h3 id="mouseeventbutton&#xFF0C;mouseeventbuttons">MouseEvent.button&#xFF0C;MouseEvent.buttons</h3>
<p><code>MouseEvent.button</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x53D1;&#x751F;&#x65F6;&#x6309;&#x4E0B;&#x4E86;&#x9F20;&#x6807;&#x7684;&#x54EA;&#x4E2A;&#x952E;&#x3002;&#x8BE5;&#x5C5E;&#x6027;&#x53EA;&#x8BFB;&#x3002;</p>
<ul>
<li>0&#xFF1A;&#x6309;&#x4E0B;&#x4E3B;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x5DE6;&#x952E;&#xFF09;&#xFF0C;&#x6216;&#x8005;&#x8BE5;&#x4E8B;&#x4EF6;&#x6CA1;&#x6709;&#x521D;&#x59CB;&#x5316;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#xFF08;&#x6BD4;&#x5982;<code>mousemove</code>&#x4E8B;&#x4EF6;&#xFF09;&#x3002;</li>
<li>1&#xFF1A;&#x6309;&#x4E0B;&#x8F85;&#x52A9;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x4E2D;&#x952E;&#x6216;&#x8005;&#x6EDA;&#x8F6E;&#x952E;&#xFF09;&#x3002;</li>
<li>2&#xFF1A;&#x6309;&#x4E0B;&#x6B21;&#x952E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x53F3;&#x952E;&#xFF09;&#x3002;</li>
</ul>
<pre><code class="lang-javascript"><span class="hljs-comment">// HTML &#x4EE3;&#x7801;&#x4E3A;</span>
<span class="hljs-comment">// &lt;button onmouseup=&quot;whichButton(event)&quot;&gt;&#x70B9;&#x51FB;&lt;/button&gt;</span>
<span class="hljs-keyword">var</span> whichButton = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">switch</span> (e.button) {
    <span class="hljs-keyword">case</span> <span class="hljs-number">0</span>:
      <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Left button clicked.&apos;</span>);
      <span class="hljs-keyword">break</span>;
    <span class="hljs-keyword">case</span> <span class="hljs-number">1</span>:
      <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Middle button clicked.&apos;</span>);
      <span class="hljs-keyword">break</span>;
    <span class="hljs-keyword">case</span> <span class="hljs-number">2</span>:
      <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Right button clicked.&apos;</span>);
      <span class="hljs-keyword">break</span>;
    <span class="hljs-keyword">default</span>:
      <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Unexpected code: &apos;</span> + e.button);
  }
}
</code></pre>
<p><code>MouseEvent.buttons</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x4E09;&#x4E2A;&#x6BD4;&#x7279;&#x4F4D;&#x7684;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x4E86;&#x54EA;&#x4E9B;&#x952E;&#x3002;&#x5B83;&#x7528;&#x6765;&#x5904;&#x7406;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x591A;&#x4E2A;&#x9F20;&#x6807;&#x952E;&#x7684;&#x60C5;&#x51B5;&#x3002;&#x8BE5;&#x5C5E;&#x6027;&#x53EA;&#x8BFB;&#x3002;</p>
<ul>
<li>1&#xFF1A;&#x4E8C;&#x8FDB;&#x5236;&#x4E3A;<code>001</code>&#xFF08;&#x5341;&#x8FDB;&#x5236;&#x7684;1&#xFF09;&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x5DE6;&#x952E;&#x3002;</li>
<li>2&#xFF1A;&#x4E8C;&#x8FDB;&#x5236;&#x4E3A;<code>010</code>&#xFF08;&#x5341;&#x8FDB;&#x5236;&#x7684;2&#xFF09;&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x53F3;&#x952E;&#x3002;</li>
<li>4&#xFF1A;&#x4E8C;&#x8FDB;&#x5236;&#x4E3A;<code>100</code>&#xFF08;&#x5341;&#x8FDB;&#x5236;&#x7684;4&#xFF09;&#xFF0C;&#x8868;&#x793A;&#x6309;&#x4E0B;&#x4E2D;&#x952E;&#x6216;&#x6EDA;&#x8F6E;&#x952E;&#x3002;</li>
</ul>
<p>&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x591A;&#x4E2A;&#x952E;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x6BCF;&#x4E2A;&#x6309;&#x4E0B;&#x7684;&#x952E;&#x5BF9;&#x5E94;&#x7684;&#x6BD4;&#x7279;&#x4F4D;&#x90FD;&#x4F1A;&#x6709;&#x503C;&#x3002;&#x6BD4;&#x5982;&#xFF0C;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#x5DE6;&#x952E;&#x548C;&#x53F3;&#x952E;&#xFF0C;&#x4F1A;&#x8FD4;&#x56DE;3&#xFF08;&#x4E8C;&#x8FDB;&#x5236;&#x4E3A;011&#xFF09;&#x3002;</p>
<h3 id="mouseeventclientx&#xFF0C;mouseeventclienty">MouseEvent.clientX&#xFF0C;MouseEvent.clientY</h3>
<p><code>MouseEvent.clientX</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x9F20;&#x6807;&#x4F4D;&#x7F6E;&#x76F8;&#x5BF9;&#x4E8E;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6C34;&#x5E73;&#x5750;&#x6807;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;<code>MouseEvent.clientY</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x5782;&#x76F4;&#x5750;&#x6807;&#x3002;&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">// HTML &#x4EE3;&#x7801;&#x4E3A;</span>
<span class="hljs-comment">// &lt;body onmousedown=&quot;showCoords(event)&quot;&gt;</span>
<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">showCoords</span>(<span class="hljs-params">evt</span>)</span>{
  <span class="hljs-built_in">console</span>.log(
    <span class="hljs-string">&apos;clientX value: &apos;</span> + evt.clientX + <span class="hljs-string">&apos;\n&apos;</span> +
    <span class="hljs-string">&apos;clientY value: &apos;</span> + evt.clientY + <span class="hljs-string">&apos;\n&apos;</span>
  );
}
</code></pre>
<p>&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x8FD8;&#x5206;&#x522B;&#x6709;&#x4E00;&#x4E2A;&#x522B;&#x540D;<code>MouseEvent.x</code>&#x548C;<code>MouseEvent.y</code>&#x3002;</p>
<h3 id="mouseeventmovementx&#xFF0C;mouseeventmovementy">MouseEvent.movementX&#xFF0C;MouseEvent.movementY</h3>
<p><code>MouseEvent.movementX</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x5F53;&#x524D;&#x4F4D;&#x7F6E;&#x4E0E;&#x4E0A;&#x4E00;&#x4E2A;<code>mousemove</code>&#x4E8B;&#x4EF6;&#x4E4B;&#x95F4;&#x7684;&#x6C34;&#x5E73;&#x8DDD;&#x79BB;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;&#x6570;&#x503C;&#x4E0A;&#xFF0C;&#x5B83;&#x7B49;&#x4E8E;&#x4E0B;&#x9762;&#x7684;&#x8BA1;&#x7B97;&#x516C;&#x5F0F;&#x3002;</p>
<pre><code class="lang-javascript">currentEvent.movementX = currentEvent.screenX - previousEvent.screenX
</code></pre>
<p><code>MouseEvent.movementY</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x5F53;&#x524D;&#x4F4D;&#x7F6E;&#x4E0E;&#x4E0A;&#x4E00;&#x4E2A;<code>mousemove</code>&#x4E8B;&#x4EF6;&#x4E4B;&#x95F4;&#x7684;&#x5782;&#x76F4;&#x8DDD;&#x79BB;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;&#x6570;&#x503C;&#x4E0A;&#xFF0C;&#x5B83;&#x7B49;&#x4E8E;&#x4E0B;&#x9762;&#x7684;&#x8BA1;&#x7B97;&#x516C;&#x5F0F;&#x3002;</p>
<pre><code class="lang-javascript">currentEvent.movementY = currentEvent.screenY - previousEvent.screenY&#x3002;
</code></pre>
<p>&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<h3 id="mouseeventscreenx&#xFF0C;mouseeventscreeny">MouseEvent.screenX&#xFF0C;MouseEvent.screenY</h3>
<p><code>MouseEvent.screenX</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x9F20;&#x6807;&#x4F4D;&#x7F6E;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6C34;&#x5E73;&#x5750;&#x6807;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;<code>MouseEvent.screenY</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x5782;&#x76F4;&#x5750;&#x6807;&#x3002;&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">// HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;</span>
<span class="hljs-comment">// &lt;body onmousedown=&quot;showCoords(event)&quot;&gt;</span>
<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">showCoords</span>(<span class="hljs-params">evt</span>) </span>{
  <span class="hljs-built_in">console</span>.log(
    <span class="hljs-string">&apos;screenX value: &apos;</span> + evt.screenX + <span class="hljs-string">&apos;\n&apos;</span>,
    <span class="hljs-string">&apos;screenY value: &apos;</span> + evt.screenY + <span class="hljs-string">&apos;\n&apos;</span>
  );
}
</code></pre>
<h3 id="mouseeventoffsetx&#xFF0C;mouseeventoffsety">MouseEvent.offsetX&#xFF0C;MouseEvent.offsetY</h3>
<p><code>MouseEvent.offsetX</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x9F20;&#x6807;&#x4F4D;&#x7F6E;&#x4E0E;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x5DE6;&#x4FA7;&#x7684;<code>padding</code>&#x8FB9;&#x7F18;&#x7684;&#x6C34;&#x5E73;&#x8DDD;&#x79BB;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;<code>MouseEvent.offsetY</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E0E;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x4E0A;&#x65B9;&#x7684;<code>padding</code>&#x8FB9;&#x7F18;&#x7684;&#x5782;&#x76F4;&#x8DDD;&#x79BB;&#x3002;&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
  &lt;style&gt;
    p {
      width: 100px;
      height: 100px;
      padding: 100px;
    }
  &lt;/style&gt;
  &lt;p&gt;Hello&lt;/p&gt;
*/</span>
<span class="hljs-keyword">var</span> p = <span class="hljs-built_in">document</span>.querySelector(<span class="hljs-string">&apos;p&apos;</span>);
p.addEventListener(
  <span class="hljs-string">&apos;click&apos;</span>,
  <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
    <span class="hljs-built_in">console</span>.log(e.offsetX);
    <span class="hljs-built_in">console</span>.log(e.offsetY);
  },
  <span class="hljs-literal">false</span>
);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x9F20;&#x6807;&#x5982;&#x679C;&#x5728;<code>p</code>&#x5143;&#x7D20;&#x7684;&#x4E2D;&#x5FC3;&#x4F4D;&#x7F6E;&#x70B9;&#x51FB;&#xFF0C;&#x4F1A;&#x8FD4;&#x56DE;<code>150 150</code>&#x3002;&#x56E0;&#x6B64;&#x4E2D;&#x5FC3;&#x4F4D;&#x7F6E;&#x8DDD;&#x79BB;&#x5DE6;&#x4FA7;&#x548C;&#x4E0A;&#x65B9;&#x7684;<code>padding</code>&#x8FB9;&#x7F18;&#xFF0C;&#x7B49;&#x4E8E;<code>padding</code>&#x7684;&#x5BBD;&#x5EA6;&#xFF08;100&#x50CF;&#x7D20;&#xFF09;&#x52A0;&#x4E0A;&#x5143;&#x7D20;&#x5185;&#x5BB9;&#x533A;&#x57DF;&#x4E00;&#x534A;&#x7684;&#x5BBD;&#x5EA6;&#xFF08;50&#x50CF;&#x7D20;&#xFF09;&#x3002;</p>
<h3 id="mouseeventpagex&#xFF0C;mouseeventpagey">MouseEvent.pageX&#xFF0C;MouseEvent.pageY</h3>
<p><code>MouseEvent.pageX</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x9F20;&#x6807;&#x4F4D;&#x7F6E;&#x4E0E;&#x6587;&#x6863;&#x5DE6;&#x4FA7;&#x8FB9;&#x7F18;&#x7684;&#x8DDD;&#x79BB;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#xFF0C;<code>MouseEvent.pageY</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E0E;&#x6587;&#x6863;&#x4E0A;&#x4FA7;&#x8FB9;&#x7F18;&#x7684;&#x8DDD;&#x79BB;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;&#x5B83;&#x4EEC;&#x7684;&#x8FD4;&#x56DE;&#x503C;&#x90FD;&#x5305;&#x62EC;&#x6587;&#x6863;&#x4E0D;&#x53EF;&#x89C1;&#x7684;&#x90E8;&#x5206;&#x3002;&#x8FD9;&#x4E24;&#x4E2A;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
  &lt;style&gt;
    body {
      height: 2000px;
    }
  &lt;/style&gt;
*/</span>
<span class="hljs-built_in">document</span>.body.addEventListener(
  <span class="hljs-string">&apos;click&apos;</span>,
  <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
    <span class="hljs-built_in">console</span>.log(e.pageX);
    <span class="hljs-built_in">console</span>.log(e.pageY);
  },
  <span class="hljs-literal">false</span>
);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x9875;&#x9762;&#x9AD8;&#x5EA6;&#x4E3A;2000&#x50CF;&#x7D20;&#xFF0C;&#x4F1A;&#x4EA7;&#x751F;&#x5782;&#x76F4;&#x6EDA;&#x52A8;&#x6761;&#x3002;&#x6EDA;&#x52A8;&#x5230;&#x9875;&#x9762;&#x5E95;&#x90E8;&#xFF0C;&#x70B9;&#x51FB;&#x9F20;&#x6807;&#x8F93;&#x51FA;&#x7684;<code>pageY</code>&#x503C;&#x4F1A;&#x63A5;&#x8FD1;2000&#x3002;</p>
<h3 id="mouseeventrelatedtarget">MouseEvent.relatedTarget</h3>
<p><code>MouseEvent.relatedTarget</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E8B;&#x4EF6;&#x7684;&#x76F8;&#x5173;&#x8282;&#x70B9;&#x3002;&#x5BF9;&#x4E8E;&#x90A3;&#x4E9B;&#x6CA1;&#x6709;&#x76F8;&#x5173;&#x8282;&#x70B9;&#x7684;&#x4E8B;&#x4EF6;&#xFF0C;&#x8BE5;&#x5C5E;&#x6027;&#x8FD4;&#x56DE;<code>null</code>&#x3002;&#x8BE5;&#x5C5E;&#x6027;&#x53EA;&#x8BFB;&#x3002;</p>
<p>&#x4E0B;&#x8868;&#x5217;&#x51FA;&#x4E0D;&#x540C;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x503C;&#x548C;<code>relatedTarget</code>&#x5C5E;&#x6027;&#x503C;&#x4E49;&#x3002;</p>
<table>
<thead>
<tr>
<th>&#x4E8B;&#x4EF6;&#x540D;&#x79F0;</th>
<th>target &#x5C5E;&#x6027;</th>
<th>relatedTarget &#x5C5E;&#x6027;</th>
</tr>
</thead>
<tbody>
<tr>
<td>focusin</td>
<td>&#x63A5;&#x53D7;&#x7126;&#x70B9;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x4E27;&#x5931;&#x7126;&#x70B9;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>focusout</td>
<td>&#x4E27;&#x5931;&#x7126;&#x70B9;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x63A5;&#x53D7;&#x7126;&#x70B9;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>mouseenter</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>mouseleave</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>mouseout</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>mouseover</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>dragenter</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
</tr>
<tr>
<td>dragexit</td>
<td>&#x5C06;&#x8981;&#x79BB;&#x5F00;&#x7684;&#x8282;&#x70B9;</td>
<td>&#x5C06;&#x8981;&#x8FDB;&#x5165;&#x7684;&#x8282;&#x70B9;</td>
</tr>
</tbody>
</table>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/*
  HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
  &lt;div id=&quot;outer&quot; style=&quot;height:50px;width:50px;border-width:1px solid black;&quot;&gt;
    &lt;div id=&quot;inner&quot; style=&quot;height:25px;width:25px;border:1px solid black;&quot;&gt;&lt;/div&gt;
  &lt;/div&gt;
*/</span>

<span class="hljs-keyword">var</span> inner = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;inner&apos;</span>);
inner.addEventListener(<span class="hljs-string">&apos;mouseover&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x8FDB;&#x5165;&apos;</span> + event.target.id + <span class="hljs-string">&apos; &#x79BB;&#x5F00;&apos;</span> + event.relatedTarget.id);
}, <span class="hljs-literal">false</span>);
inner.addEventListener(<span class="hljs-string">&apos;mouseenter&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x8FDB;&#x5165;&apos;</span> + event.target.id + <span class="hljs-string">&apos; &#x79BB;&#x5F00;&apos;</span> + event.relatedTarget.id);
});
inner.addEventListener(<span class="hljs-string">&apos;mouseout&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x79BB;&#x5F00;&apos;</span> + event.target.id + <span class="hljs-string">&apos; &#x8FDB;&#x5165;&apos;</span> + event.relatedTarget.id);
});
inner.addEventListener(<span class="hljs-string">&quot;mouseleave&quot;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>)</span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x79BB;&#x5F00;&apos;</span> + event.target.id + <span class="hljs-string">&apos; &#x8FDB;&#x5165;&apos;</span> + event.relatedTarget.id);
});

<span class="hljs-comment">// &#x9F20;&#x6807;&#x4ECE; outer &#x8FDB;&#x5165;inner&#xFF0C;&#x8F93;&#x51FA;</span>
<span class="hljs-comment">// &#x8FDB;&#x5165;inner &#x79BB;&#x5F00;outer</span>
<span class="hljs-comment">// &#x8FDB;&#x5165;inner &#x79BB;&#x5F00;outer</span>

<span class="hljs-comment">// &#x9F20;&#x6807;&#x4ECE; inner&#x8FDB;&#x5165; outer&#xFF0C;&#x8F93;&#x51FA;</span>
<span class="hljs-comment">// &#x79BB;&#x5F00;inner &#x8FDB;&#x5165;outer</span>
<span class="hljs-comment">// &#x79BB;&#x5F00;inner &#x8FDB;&#x5165;outer</span>
</code></pre>
<h2 id="mouseevent-&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;">MouseEvent &#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;</h2>
<h3 id="mouseeventgetmodifierstate">MouseEvent.getModifierState()</h3>
<p><code>MouseEvent.getModifierState</code>&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6709;&#x6CA1;&#x6709;&#x6309;&#x4E0B;&#x7279;&#x5B9A;&#x7684;&#x529F;&#x80FD;&#x952E;&#x3002;&#x5B83;&#x7684;&#x53C2;&#x6570;&#x662F;&#x4E00;&#x4E2A;&#x8868;&#x793A;<a href="https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/getModifierState#Modifier_keys_on_Gecko" target="_blank" rel="nofollow">&#x529F;&#x80FD;&#x952E;</a>&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;click&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-built_in">console</span>.log(e.getModifierState(<span class="hljs-string">&apos;CapsLock&apos;</span>));
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x7684;&#x4EE3;&#x7801;&#x53EF;&#x4EE5;&#x4E86;&#x89E3;&#x7528;&#x6237;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x4E86;&#x5927;&#x5199;&#x952E;&#x3002;</p>
<h2 id="wheelevent-&#x63A5;&#x53E3;">WheelEvent &#x63A5;&#x53E3;</h2>
<h3 id="&#x6982;&#x8FF0;">&#x6982;&#x8FF0;</h3>
<p>WheelEvent &#x63A5;&#x53E3;&#x7EE7;&#x627F;&#x4E86; MouseEvent &#x5B9E;&#x4F8B;&#xFF0C;&#x4EE3;&#x8868;&#x9F20;&#x6807;&#x6EDA;&#x8F6E;&#x4E8B;&#x4EF6;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x3002;&#x76EE;&#x524D;&#xFF0C;&#x9F20;&#x6807;&#x6EDA;&#x8F6E;&#x76F8;&#x5173;&#x7684;&#x4E8B;&#x4EF6;&#x53EA;&#x6709;&#x4E00;&#x4E2A;<code>wheel</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x7528;&#x6237;&#x6EDA;&#x52A8;&#x9F20;&#x6807;&#x7684;&#x6EDA;&#x8F6E;&#xFF0C;&#x5C31;&#x751F;&#x6210;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x5B9E;&#x4F8B;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;<code>WheelEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x751F;&#x6210;<code>WheelEvent</code>&#x5B9E;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> wheelEvent = <span class="hljs-keyword">new</span> WheelEvent(type, options);
</code></pre>
<p><code>WheelEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x53EF;&#x4EE5;&#x63A5;&#x53D7;&#x4E24;&#x4E2A;&#x53C2;&#x6570;&#xFF0C;&#x7B2C;&#x4E00;&#x4E2A;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x7C7B;&#x578B;&#xFF0C;&#x5BF9;&#x4E8E;&#x6EDA;&#x8F6E;&#x4E8B;&#x4EF6;&#x6765;&#x8BF4;&#xFF0C;&#x8FD9;&#x4E2A;&#x503C;&#x76EE;&#x524D;&#x53EA;&#x80FD;&#x662F;<code>wheel</code>&#x3002;&#x7B2C;&#x4E8C;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x4E8B;&#x4EF6;&#x7684;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#x3002;&#x8BE5;&#x5BF9;&#x8C61;&#x7684;&#x5C5E;&#x6027;&#x9664;&#x4E86;<code>Event</code>&#x3001;<code>UIEvent</code>&#x7684;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#x4EE5;&#x5916;&#xFF0C;&#x8FD8;&#x53EF;&#x4EE5;&#x63A5;&#x53D7;&#x4EE5;&#x4E0B;&#x51E0;&#x4E2A;&#x5C5E;&#x6027;&#xFF0C;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EF;&#x9009;&#x7684;&#x3002;</p>
<ul>
<li><code>deltaX</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684;&#x6C34;&#x5E73;&#x6EDA;&#x52A8;&#x91CF;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F; 0.0&#x3002;</li>
<li><code>deltaY</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684;&#x5782;&#x76F4;&#x6EDA;&#x52A8;&#x91CF;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F; 0.0&#x3002;</li>
<li><code>deltaZ</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684; Z &#x8F74;&#x6EDA;&#x52A8;&#x91CF;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F; 0.0&#x3002;</li>
<li><code>deltaMode</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x76F8;&#x5173;&#x7684;&#x6EDA;&#x52A8;&#x4E8B;&#x4EF6;&#x7684;&#x5355;&#x4F4D;&#xFF0C;&#x9002;&#x7528;&#x4E8E;&#x4E0A;&#x9762;&#x4E09;&#x4E2A;&#x5C5E;&#x6027;&#x3002;<code>0</code>&#x8868;&#x793A;&#x6EDA;&#x52A8;&#x5355;&#x4F4D;&#x4E3A;&#x50CF;&#x7D20;&#xFF0C;<code>1</code>&#x8868;&#x793A;&#x5355;&#x4F4D;&#x4E3A;&#x884C;&#xFF0C;<code>2</code>&#x8868;&#x793A;&#x5355;&#x4F4D;&#x4E3A;&#x9875;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;<code>0</code>&#x3002;</li>
</ul>
<h3 id="&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;">&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;</h3>
<p><code>WheelEvent</code>&#x4E8B;&#x4EF6;&#x5B9E;&#x4F8B;&#x9664;&#x4E86;&#x5177;&#x6709;<code>Event</code>&#x548C;<code>MouseEvent</code>&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;&#x548C;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;&#xFF0C;&#x8FD8;&#x6709;&#x4E00;&#x4E9B;&#x81EA;&#x5DF1;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;&#xFF0C;&#x4F46;&#x662F;&#x6CA1;&#x6709;&#x81EA;&#x5DF1;&#x7684;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;&#x5C5E;&#x6027;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x5C5E;&#x6027;&#x3002;</p>
<ul>
<li><code>WheelEvent.deltaX</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684;&#x6C34;&#x5E73;&#x6EDA;&#x52A8;&#x91CF;&#x3002;</li>
<li><code>WheelEvent.deltaY</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684;&#x5782;&#x76F4;&#x6EDA;&#x52A8;&#x91CF;&#x3002;</li>
<li><code>WheelEvent.deltaZ</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6EDA;&#x8F6E;&#x7684; Z &#x8F74;&#x6EDA;&#x52A8;&#x91CF;&#x3002;</li>
<li><code>WheelEvent.deltaMode</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x4E0A;&#x9762;&#x4E09;&#x4E2A;&#x5C5E;&#x6027;&#x7684;&#x5355;&#x4F4D;&#xFF0C;<code>0</code>&#x662F;&#x50CF;&#x7D20;&#xFF0C;<code>1</code>&#x662F;&#x884C;&#xFF0C;<code>2</code>&#x662F;&#x9875;&#x3002;</li>
</ul>




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